Our M7DH45B2A humidifier is now freezing up. We purchased it 14 mos. ago and it has worked FINE. Now it freezes up and it's frustrating. The room temp is the same in our basement as it always has been. 66 degrees. I was told that some models will not work properly in temps. less that 65 degrees. But the room temp here HAS NOT changed since we first used the Dehumidifier.
I have the same dehumidifier and it does the same thing. but I was able to fix mine. It was not low on refridgerant. There is a temp. sensor clamped to the evaporater coil with a thin metal clip. The clip rusted out and the sensor fell out of position. I used a small stainless steel hose clamp and clamped the sensor back into position. It now works fine
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This can happen if the Temperature in your room is too low. You can work around it and place a 40 watt bulb near the the inlet of the humidifier to warm up the air a bit. Also if the humidity level in your room is already too low this can cause your dehumidifier to freeze up.
It might be a problem since these units were made by Fedders for Maytag which is now owned by Whirlpool :inhale: but I found part number FD9520-010 "drain hose". If not, a length of dishwasher drain hose with a male garden hose fitting on one end would work fine
Are you talking about a dehumidifier or a humidifier. If you are talking about a dehumidifier, it works by blowing air across a cooling coil causing condensation and the water will drip and pool. The cooling is caused by a compressor working like refrigerator, but using the effect to dehumidify. To check if the cooling coil is working there will be a metal can like in it with tubes in and out. One of the tubes should be warm(input) and the other tube should be cold, if not your compressor is not working. If freezing up, low freon. Check to see if the compressor shuts off very quickly, that would be too much freon. This is not user servicable.
Now a humidifier works several different ways. One way is a fan with cloth belts rolling through water using evaporation to humidify. Another way is for a circular fan like on a motor to turn. It has a hollow piece into the water. It picks up water and then through centrifugal force aerates. One way is for a sonic humidifier. All the types have a problem with eventual calcification or mineral build up in the water handling paths. Lime-away or Concentrated Lemon Juice will dissolve this. The lemon juice is the most fun. It will turn your toilet bowl white and also remove rust stains from laundry...